HRM-Swim(TM) Heart Rate MonitorStores Heart Rate Underwater and Forwards DataSpecifically designed for swimmersNon-slip strapStores and forwards heart rate data to compatible devicesA Take your training to the next level by pairing HRM-Swim with your ForerunnerA(R) 920XT. The sleek, non-slip strap stays in place, even during wall push-offs. Once out of water, real-time heart rate, interval summaries and stored heart rate are transmitted to the 920XT.Example of Typical Uses:Pool swimsOpen water swimsTriathlon competition (pool swim), triathlon kit not requiredRuns or bike rides as part of a multi-sport activity that includes a pool swimA Forerunner 920XT/735, fenixA(R) 3/3 HR, epix(TM)WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.